diff --git a/kernel-shared/zoned.c b/kernel-shared/zoned.c
index d4f524d4..6d343bf6 100644
--- a/kernel-shared/zoned.c
+++ b/kernel-shared/zoned.c
@@ -345,6 +345,12 @@ int btrfs_check_zoned_mode(struct btrfs_fs_info *fs_info)
 		goto out;
 	}
 
+	if (btrfs_fs_incompat(fs_info, MIXED_GROUPS)) {
+		error("zoned: mixed block groups not supported");
+		ret = -EINVAL;
+		goto out;
+	}
+
 	fs_info->zone_size = zone_size;
 	fs_info->max_zone_append_size = max_zone_append_size;